Earnings Per Share

12 Months Ended

Apr. 30, 2012

Earnings Per Share [Abstract]

Earnings Per Share

NOTE 2: EARNINGS PER SHARE

Basic and diluted earnings per share is computed using the two-class method. The two-class method is an earnings allocation formula that determines net income per share for each class of common stock and participating security according to dividends declared and participation rights in undistributed earnings. Per share amounts are computed by dividing net income from continuing operations attributable to common shareholders by the weighted average shares outstanding during each period. The computations of basic and diluted earnings per share from continuing operations are as follows:

	(in 000s, except per share amounts)
Year ended April 30,	2012			2011			2010
Net income from continuing operations attributable to shareholders	$	345,968		$	392,547		$	455,123
Amounts allocated to participating securities (nonvested shares)		(455	)		(1,007	)		(1,750	)
Net income from continuing operations attributable to common shareholders	$	345,513		$	391,540		$	453,373
Basic weighted average common shares		297,863			309,230			332,283
Potential dilutive shares		738			547			953
Dilutive weighted average common shares		298,601			309,777			333,236
Earnings per share from continuing operations attributable to common shareholders:
Basic	$	1.16		$	1.27		$	1.37
Diluted		1.16			1.27			1.36

Diluted earnings per share excludes the impact of shares of common stock issuable upon the lapse of certain restrictions or the exercise of options to purchase 8.9 million, 12.8 million and 13.7 million shares of stock for fiscal years 2012, 2011 and 2010, respectively, as the effect would be antidilutive.